CR20

CR20 Needle Bearing Cam Follower

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Quality Commitment

Serving our customers with quality and safety first.

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Datasheet. CR20 specification

Thread Class
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.

3a

Thread Direction
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

RIGHT-Hand

Thread Length
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.

0.6250in. ⁓5/8"

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

2.0312in. ⁓2-3/64"

Overall Outside Diameter
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

1.2500in.

Stud Diameter
The length of a straight line which passes through the center of a stud,and terminates at the circumference.

0.5000in.

Outer Ring Width

0.7500in.

Stud Length
A measurement of the longest dimension of the stud,in distinction from width.

1.2500in.

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

20

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.500in. ⁓1/2"

Special Features
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.

w/means for relubrication

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

cam follower

Thread Series Designator
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unf

Answers.

What class is the thread series?

Unf

What is the style?

Cam follower

What is the thread quantity per inch?

20

What is the thread length?

0.6250 inches

What is the thread direction?

Right-hand

What is the thread class?

3a

What is the NSN for CR20?

3110-00-159-1603

How is this classified for shipping?

Schedule B number: 8482400000
Needle roller bearings

What's the federal classification of CR20?

FSC 3110 ⁓ Bearings, antifriction, unmounted

Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.

Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)

NSN 3110-00-159-1603 CAM FOLLOWER,NEEDLE BEARING

unf thread series cam follower w/means for relubrication 20 thread quantity per inch 2.0312" overall length 0.6250" thread length right-hand 3a thread class

NIIN
001591603
NIIN Date
01/01/63
Schedule B
8482400000 
Name Code
00040
FIIG
A044A0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. CTA45 Cage 07484
2. 8341195 Cage 19207
3. CF25 Cage 51588
4. 1483408 Cage 80064
5. CF1-1-4 Cage 92563
6. S40 Cage 45014
7. CF1 1-4 Cage 39317

Major End Users Countries and entities

  • - Government Printing office 
  • - Argentina 
  • - Canada 
  • - Greece 

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Similar by Design Other cam followers with similar characteristics

Nothing similar to this part number was found in our inventory

CR20 / Cam follower,needle bearingWhat is the formal definition of this item?

An assembly consisting of a roller and stud used to effect a rolling contact with a cam, and convert the reciprocating or oscillating motion to linear motion.